
Density: 1090-1140 kg/m3
Density: 470 kg/m3
Weight:Lumber:2,700 Mbf;Logs:7,700 Mbf (Mbf=1000 board feet) Weight:A very heavy timber, at 1120 kilograms per cubic metre
color: deep dark red to red-brownColor: light-coloured, homogenous, and the yellowish heartwood is not clearly distinguished from the cambium.
grain pattern: It has a ne and even texture with an interlocked grain
grain pattern: homogenous and knotty
Hardness: 10.7-11.9 kN Hardwood
Hardness: 1.3 kN Soft
Durability: Very High – More than 40 Years(Above Ground);High – 15-25 Years (In Ground)Durability: Low – 0-5 Years (In Ground), cannot be impregnated 1
Wood in Architecture and Construction - Assignment 1 - Properties of wood material- Yaqi Liao (2/3)
2“Ironbark, Red,” WoodSolutions, accessed September 29, 2022, https://www.woodsolutions.com.au/wood-species/hardwood/ironbark-red.
1“Spruce,” Puuproa, accessed September 29, 2022, https://puuproa./puutieto-2-2/species/kuusi-2/?lang=en.pdf.
Figure 1: "Spruce,” Puuproa, accessed September 29, 2022, https://puuproa./puutieto-2-2/species/kuusi-2/?lang=en.
Figure 2: "Spruce Log Cut,” Puuproa, accessed September 29, 2022, https://puuproa./
puutieto-2-2/species/kuusi-2/?lang=en.
Figure 3: "Ironbark, Red,” Woodsolutions, accessed September 28, 2022, https://www.woodsolutions.com.au/wood-species/hardwood/ironbark-red
Ironbark (Eucalyptus sideroxylon)
Norway Spruce (Picea abies)
Early wood:yellowish white
Late wlood:reddish yellow
Spruce's e sapwood and heartwood not always distinguishable, but
heartwood often tinged with brown and reddish-brown hues.
Spruce Plywood
• in every other ply the grain
direction is crosswise
• grain direction essential to the
strength+ visual character
Ironbark Flooring
• finished with varnishes, stains
and oils
• high resistance to rot
• excellent durability and
hardness.
Spruce Sawn
• Even colour and densly
grained strucrture.
• Particularly well-suited for
interior and exterior paneling,
furniture, construction.
Ironbark Sawn
• Fine texture
• intensive strength
• Ironbark is very hard to work,
limiting some applications that
require ne detailing.
Glue Laminated wood(Structural)
• graind direction influence the
stength?
• used forbeams in long span
structures
Ironbark Post (Structural)
• 150 x 150mm to 400x 400mm;
usually cube post?
• from 2.1m – 4.2m long
• Strong ,heavy, thick, compact,
and hard bark (good for public)
Tangential cut :More timber out of each log;
Radial cut:when you want the sawn wood to have certain specific
characteristics such as grains on the surface, moisture ratio and dimensional
stability.
Usage: construction, glue lam, LVL, plywood, exterior cladding, panels Usage: Heavy construction, transport, and marine construction, domestic and non-domestic decks, joinery, furniture,
Tangential cut
Radial cut
Figure 4: "Ironbark Log Cut,” Realwood, accessed September 27, 2022, https://realwood.com.au/
product/ironbark-chopping-board/
Red ironbark heartwood is a deep red
Red ironbark sapwood is distinctive pale yellow
Dressed Dressed Clear
Coated
The red ironbark tree has a tendency towards piping, where a hollow forms
in the trunk's centre trunk and reduces recovery rates and sectional sizes of
sawn timber.2